Home / 20,775,695.40-31,163,543.10-12,260,111.40

Finding the Fourth Proportional to 20,775,695.40, 31,163,543.10 and 12,260,111.40

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Solution

The fourth proportional to 20,775,695.40, 31,163,543.10 and 12,260,111.40 is: 18,390,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,695.40 : 31,163,543.10 = 12,260,111.40 : x
  2. Step 2: Convert to fraction form
    20,775,695.40/31,163,543.10 = 12,260,111.40/x
  3. Step 3: Cross multiply
    20,775,695.40x = 31,163,543.10 × 12,260,111.40
  4. Step 4: Simplify right side
    20,775,695.40x = 382,068,510,024,701.38
  5. Step 5: Solve for x
    x = 382,068,510,024,701.38/20,775,695.40
  6. Step 6: Final answer
    x = 18,390,167.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.